Out-of-bounds Read in Mz Automation Gmbh Libiec61850

CVE-2026-66360

The ISO Presentation layer contains a flaw in the handling of specific parameters during normal mode negotiation. A missing length check in the processing of the encoded presentation data allows an attacker controlled field with a zero…

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-66360?
CVE-2026-66360 is a high-severity vulnerability in Mz Automation Gmbh Libiec61850, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-07-30.
How severe is CVE-2026-66360?
High severity. CVSS v3 base score is 7.5 out of 10.